Portable ring type heater



' P 29, 1947- J. L. BREESE PORTABLE RING TYPE HEATER I Fiied Feb. 16, 1944v 2 Sheets-Sheet 1 fizz/@2250)" Jmes Z .Breese April 1947- J. L. BREESE 2,419,625

PORTABLE RING TYPE HEATER Filed Feb. 16, 1944 2 Sheets-Sheet 2 l I r \IINI g5 27 40 Y 1 =8 #2 22 I 3 25 j 2.9 I

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' Patented Apr. 29, 1947 r when ,sr-A'ras PATENT orr ca James Ia-Breeae, Santa Fe, N. Men, anlgnor to nerlhipoilllinoia Application l'ebruary ld,

c (c1. its-91) vaporizing type in which the flashback of combustion into the vaporizing ehamber is prevented.

Another purpose is to provide improved means 'ior controlling the passage or air to a ring type vaporizing burner. Y

Another purpose is to provide improved means for delivering air under pressure to a vaporizing type burner. I j

Other purposes will appear from time to time in the course of the specification.

1 illustrate the invention more or less diagrammatically in the accompanying drawings, where- Fig. 1 is a vertical axial section;

Fig. 21s a section on line 2 -2 of Fig. 1;

Fig. 3 is a section on anenl'arged scale on the line 3-3 of Fig. 1;

Fig. 4 ls a side elevation, with parts in verticalsection, of a variant form 01 the device; and

Fig. 5 is a vertical axial section or a still further variation of the device. Like parts are indicated by like symbols throughout the specification and drawings.

Referringflrst tothe former device as shown in Figs. 1 to,3:

I generally indicates a vaporizing and liquidfuel storage chamber in which a substantial volume of liquid fuel may be stored, as at 2. 3 indicates any suitable coveror top for the vaporizing chamber. It may be'made removable, but, for convenience, it is illustrated as unitary. The top 3 is provided with a fuel inlet fitting ll, closed by any suitable movable closure 5. 8 is an air inlet tube extending downwardly through the top 3 to a point closely adjacent the bottom of the chamber. It is provided with air passage slots E, 8, the slot t being of greater arcuate width than the slot i. s is an open ended air inlet shutter tube, which may be actuated by the manual handle it, which also serves as stop means for limiting the downward movement of the tube a within the tube 6.. The tube 9 is provided with air admission slots ii and I 2, which are shown as of the same arcuate width. It will be understood that the air flowing inwardly through the tubes 6 and 9 maybe controlled by rotation of the tube 9 in relation to the tube 5. In Fig. 3 the "parts are shown at maximum flow position. By rotation of the tube 9, the slot it may be closed while the slot [2 is still open. Further rotation may partially or completely close the slot i2 and thus cut off air supply to the interior of the vaporizing .chamber I.

I5 is a cylindrical flange extending upwardly from the top 3 oi'th'e vaporizing chamber. It is along the member 20.

Oil Devices. Santa Fe, N. Men, a limited part- 1944, Serial No. 522,546

. 2 shown as receiving a flange i601 the lower chamber member H. An upper niember I8 is secured to the member II, a disc of fine wire mesh it being secured therebetween. 20 is an upwardly extending passage member provided with a plurality of air inlet passages or apertures 2|. 22 ha circumferential I air shutter having matching passages 23. The

shutter rests on a head 24 in the'member 20. 25 is any suitable handle for rotating the shutter ring 23 and for thus varying the supply 01 air admitted to the vaporized fuel flowin upwardly 26 generally indicates a burner head or ring having a circumferential annulus 21, providedwith a plurality of flame outlets 28.

It will be understood that fuel vapor is generated by maintaining a generating flame at the surface of the liquid fuel 2. For example, a match may be dropped down the passage tube 9 to initiate combustion.- If necessary, extra air for the starting period may be admitted by removing the cap 5. The flame maintained in the vaporizing chamber may be adjusted by rotation of the tube 9 through use of the handle ill. The more air admitted, the greater will be the volume or liquid fuel vaporized. The vaporized liquid fuel by a circumferential flange 32. The heater 3B has a removable cover 33 and is provided with top outlet apertures as, through which the products of combustion may pus.

In the form of Fig. 5, I add to the structure shown in Figs. 1 and 3' means for delivering air under pressure to the burner. I illustrate, for example a circumferential jacket ell; through which the handle 25 of the shutter 22 projects. M is an air housing shown as positioned upon the top a of the vaporizing chamber. It has an air inlet aperture 42 to receive a fan 43, rotated by any suitable motor M on a bracket 65, extending upwardly from the chamber i.- 46 is an air duct extending from the housing M to" the interior. of the jacket or housing Mi. 4! is any suitable control member for rotating the air inlet tube 9'.

' It will be understood that whereas I have deseribed'and shown a practical and operative device, and several forms thereof, nevertheless many changes may be made in the size, shape, numher and disposition of parts without departing.

from the spirit of my invention. I therefore wish surrounding cylindrical my description and drawings to be taken as in a broad sense illustrative and diagrammatic rather than limiting me to my specific showing herein. I

The use and operation of my invention are as follows:

I illustrate three forms of a ring type portable vaporizing burner. In each of these forms the base of the device is constituted by a liquid fuel storage chamber of substantial size. Liquid fuel is vaporized in the storage or vaporizing chamber by the maintenance of a relatively small vaporizing flame, which is eifective tovaporize enough liquid fuel to support combustion in the burner proper. The size of the vaporizing flame, and thus the rate of vaporization, is controlled by varying the rateof inflow of air to the vaporizing chamber. The vaporized fuel, with the byproducts of the combustion taking place in the vaporizing chamber, rises upwardly through the protective screen 19 and receives a supply of air through the inlets 21, 23. The mixture thus completed flows upwardly through the apertures 28. In the forms of Figs. 1 and 5, the mixture burns in the atmospheric air which surrounds the ring. In the form of Fig. 4, a heater element is supplied and enough air must pass through the apertures 2|, 23 to produce a fully combustible mixture. The member 30 forms an eflicient heat radiating element. In the form of Fig. 5, air is supplied under pressure. As the inlet end ofthe member 9 is located within the air housing 4|, air is supplied under pressure to the interior of the vaporizing chamber. It is also supplied along the passage 46 to the interior.

of the jacket and thence through the apertures 2'1, 23. Independent means, namely, members 41 and 25, are provided for controlling the inflow of air to the vaporizing chamber and to the mixing chamber, respectively.

I claim:

1. In a liquid fuel vaporizingtype burner, a vaporizing and fuel supply chamber,- controllable means for supplying a variable supply of air to take housing into which said fan delivers, theinterior of said intake housing being in communication with the means for supplying air to the vaporizing chamber.

2. In a liquid fuel vaporizing type burner, a vaporizing and fuel supply chamber, controllable means for supplying a variable supply of air to the interior of said vaporizing chamber, a burner head having outlet apertures therein, a vapor passage member extending from the vaporizing chamber to the burner head, controllable means for delivering a variable supply of air to the mixture flowing along said passage member from the vaporizing chamber to the burner head, and means for delivering air under pressure to the burner, including a motor, a fan and an air intake 2 housing into which said fan delivers, the interior of said intake housing being in communication with the means for supplying air to the vaporizing chamber, and in communication with the means for delivering air to the mixture.

3. In a liquid fuel vaporizing type burner, a

vaporizing and fuel supply chamber, controllable means for supplying a variable supply of air to the interiorof said vaporizing chamber to support a vaporizing flame in said chamber. a burner, means for conducting vaporized fuel from the interior of the vaporizing chamber to the burner, means for delivering additional air to the vaporized fuel prior to its combustion, and means for increasing the pressure of the air supplied to the vaporizing chamber and to the vaporized fuel to above atmospheric pressure.

4. In a liquid fuel vaporizing type burner, 21.

vaporizing and fuel supplychamber, controllable means for supplying a variable supply of air to the interior of said vaporizing chamber to support a vaporizing flame in said chamber, a burner, means for conducting vaporized fuel from theinterior of the vaporizing chamber to the burner, means for delivering additional air to the vaporized fuel prior to its combustion, and means for increasing the pressure of the air supplied to the vaporizing chamber and to the vaporized fuel to above atmospheric pressure, including an air housing mounted on the vaporizing chamber, and having an air inlet passage, and a fan for forcing air into said housing and a fan motor, mounted. on the vaporizing chamber.

5. In a liquid fuel vaporizing type burner, a vaporizing and fuel supply chamber, controllable means for admitting a variable supply of air to the interior of said vaporizing chamber, a burner head having flame outlet apertures therein, a fuel vapor passage member extending from the vaporizing chamber to, and supporting, the

burner head, controllable means for admitting.

a variable supply of air to the vaporized fuel flowing along the passage member from the vaporizing chamber to the burner head and safety screen means in said passage member.

6. In a liquid fuel vaporizing type burner, a vaporizing and fuel supply chamber, controllable means for admitting a variable supply of air to the interior of the vaporizing chamber, a burner head having flame outlet apertures, a fuel vapor passage member extending from the vaporizing chamber and supporting the burner head, the burner head having a hollow interior in direct communication, through said passage member, with the interior of the vaporizing and fuel supply chamber, and' controllable means for admitting a variable supply of air to the vaporized fuel flowing along the vapor passage member from the vaporizing chamber to the burner head.

JAMES L. BREESE.

'REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number 

